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180538052 = 22731374513
BaseRepresentation
bin10101100001011…
…00101011000100
3110120201021122112
422300230223010
5332204204202
625525320152
74321356002
oct1260545304
9416637575
10180538052
11929aaa02
1250566058
132b531a66
1419d97a72
1510cb2b52
hexac2cac4

180538052 has 24 divisors (see below), whose sum is σ = 322678776. Its totient is φ = 88363008.

The previous prime is 180538027. The next prime is 180538069. The reversal of 180538052 is 250835081.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1406596 + 179131456 = 1186^2 + 13384^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37748 + ... + 42260.

It is an arithmetic number, because the mean of its divisors is an integer number (13444949).

Almost surely, 2180538052 is an apocalyptic number.

It is an amenable number.

180538052 is a deficient number, since it is larger than the sum of its proper divisors (142140724).

180538052 is a wasteful number, since it uses less digits than its factorization.

180538052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4727 (or 4725 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 180538052 is about 13436.4449167181. Note that the first 3 decimals coincide. The cubic root of 180538052 is about 565.1836424995.

The spelling of 180538052 in words is "one hundred eighty million, five hundred thirty-eight thousand, fifty-two".

Divisors: 1 2 4 73 137 146 274 292 548 4513 9026 10001 18052 20002 40004 329449 618281 658898 1236562 1317796 2473124 45134513 90269026 180538052